SU54379A1 - Device for lowering the load when the electric crane is suddenly disconnected from the current source - Google Patents

Device for lowering the load when the electric crane is suddenly disconnected from the current source

Info

Publication number
SU54379A1
SU54379A1 SU12942A SU12942A SU54379A1 SU 54379 A1 SU54379 A1 SU 54379A1 SU 12942 A SU12942 A SU 12942A SU 12942 A SU12942 A SU 12942A SU 54379 A1 SU54379 A1 SU 54379A1
Authority
SU
USSR - Soviet Union
Prior art keywords
lowering
load
current source
electric crane
suddenly disconnected
Prior art date
Application number
SU12942A
Other languages
Russian (ru)
Inventor
И.М. Гриншпун
С.А. Любимов
Б.А. Смехов
И.Б. Соколовский
Original Assignee
И.М. Гриншпун
С.А. Любимов
Б.А. Смехов
И.Б. Соколовский
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by И.М. Гриншпун, С.А. Любимов, Б.А. Смехов, И.Б. Соколовский filed Critical И.М. Гриншпун
Priority to SU12942A priority Critical patent/SU54379A1/en
Application granted granted Critical
Publication of SU54379A1 publication Critical patent/SU54379A1/en

Links

Landscapes

  • Motor And Converter Starters (AREA)
  • Control And Safety Of Cranes (AREA)

Description

В отдельных случа х практики, в частности, при обслуживании тер- мйческих устройств, требуетс  на- j чавшуюс  операцию по опусканию издели  в печь или в закалочный бак довести до конца даже в уело- ; ВИЯХ полного отключени  крана от | источника питани .IIn some cases of practice, in particular, when servicing thermal devices, it is required to start the operation of lowering the product into the furnace or into the quenching tank even in a well-maintained tank; VIEH complete shutdown of the crane from | power source .I

Дл  осуществлени  этого, согласно изобретению, предлагаетс  на мосту крана установить мотор-генератор с маховиком на обшем валу, который так соразмерен, чтобы он обес- печивал вращение генератора в течение некоторого вр-емени, достаточного дл  питани  цепи управлени  на все врем  аварийного оаускани  груза.To accomplish this, according to the invention, it is proposed to install a motor-generator with a flywheel on the common shaft on the crane bridge, which is so commensurate that it provides the generator rotation for some time sufficient to feed the control circuit for the entire time of emergency loading .

Сущность изобретени  по сн етс  чертежом, на котором изображена принципиальна  электрическа  схема предлагаемого устройства.The invention is illustrated in the drawing, which shows a circuit diagram of the device.

Мотор-генератор М-Г мощностью 4-5 КВТ с маховиком Ъ собран на | общей плите и установлен, как ука- i зывалось выше, на мосту крана. |Motor generator MH with a capacity of 4-5 kW with a flywheel b assembled on | common plate and installed, as indicated above, on the bridge crane. |

Мотор М питаетс  от зажимов А защитной панели и защищаетс  соответствующими максимальными The motor M is powered from the clamps A of the protective panel and protected by the corresponding maximum

ле; напр жение этой, сети 440 вольт. Буквами РП обозначено реле сериесного типа. Генератор Г питает контакторные панели моторов подъема и щунтовые тормозные электромагниты; напр жение цепи управлени  220 вольт.le; voltage of this, network 440 volts. Letters RP designated series-type relay. Generator G feeds the contactor panels of the lifting motors and the shunt brake electromagnets; control voltage is 220 volts.

В устройстве примен етс  типова  аппаратура, как-то: контакторы, шунтовые тормозные электромагниты, кнопки.The device uses typical equipment, such as contactors, shunt brake electromagnets, buttons.

При нормальном режиме схема работает следующим образом. Кнопкой Л включаетс  линейный контактор мотора М (контакт реле РП замкнут). Запускаетс  мотор М и возбуждаетс  генератор Г. После этого включаетс  рубильник Р. Замыканием кнопки Ла включаетс  контактор в цепи генератора, и напр жение 220 вольт подаетс  в цепь управлени  контакторных контроллеров . Опериру  командо-контроллером , машинист производит краном ту или иную работу.In normal mode, the scheme works as follows. The L button activates the linear contactor of the motor M (the relay contact RP is closed). The motor M is started and the generator G is energized. After this, the switch of the switch P. is turned on. By closing the button L a contactor is turned on in the generator circuit, and a voltage of 220 volts is applied to the control circuit of the contactor controllers. Operated by a controller, the driver performs this or that work with a crane.

Если же, например, в процессе закалки издели  внезапно выключаютс  троллеи крана, то линейный контактор мотора М выключаетс .If, for example, the trolley of the crane is suddenly turned off during the quenching process, the linear contactor of the motor M is turned off.

SU12942A 1937-12-16 1937-12-16 Device for lowering the load when the electric crane is suddenly disconnected from the current source SU54379A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU12942A SU54379A1 (en) 1937-12-16 1937-12-16 Device for lowering the load when the electric crane is suddenly disconnected from the current source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU12942A SU54379A1 (en) 1937-12-16 1937-12-16 Device for lowering the load when the electric crane is suddenly disconnected from the current source

Publications (1)

Publication Number Publication Date
SU54379A1 true SU54379A1 (en) 1938-11-30

Family

ID=48364490

Family Applications (1)

Application Number Title Priority Date Filing Date
SU12942A SU54379A1 (en) 1937-12-16 1937-12-16 Device for lowering the load when the electric crane is suddenly disconnected from the current source

Country Status (1)

Country Link
SU (1) SU54379A1 (en)

Similar Documents

Publication Publication Date Title
US2435440A (en) Reversible motor drive
US3249836A (en) Motor control system for battery-powered vehicle
SU54379A1 (en) Device for lowering the load when the electric crane is suddenly disconnected from the current source
US1985639A (en) Electric motor control for refrigerated cars
US1820786A (en) Motor control system
US1999301A (en) Electrical system and apparatus
US2724796A (en) Control system for electric motor driven hoists and the like
US1490228A (en) Control system
US1577068A (en) Electrical controller for motor-driven devices
US2628336A (en) Variable voltage motor control system
US2118219A (en) Induction motor driving and braking system
US1731373A (en) Motor-control system
US1818486A (en) Control system
GB748707A (en) Improvements in and relating to mine hoists and like winding gear
US1976512A (en) Motor control system
US1734919A (en) Motor controller
US1918960A (en) Timing device for laundry extractors
US2456427A (en) Protective system for electric motors
US1175367A (en) Motor-control system.
US1804180A (en) Motor control system
US1743627A (en) Elevator control
US2481743A (en) Controller and circuit breaker for electric motors
US1871777A (en) Notching relay
US1427644A (en) Electric-elevator-control system
SU29859A1 (en) Device for regulating the braking current on electric locomotives